Extreme athlete Felix Baumgartner hopes to make a second attempt to become the world’s first supersonic skydiver with a 23-mile free fall over New Mexico on Sunday or Monday.

Baumgartner aborted his mission Tuesday due to high winds, and his team had hoped the weather would allow him another try Thursday. But now they’re looking at the next window being Sunday or Monday.

Baumgartner is hoping to become the first skydiver to break the sound barrier by jumping from a capsule floated more than 120,000 feet into the stratosphere by an ultra-thin, 55-story helium balloon.

The jump was postponed due to wind Monday, then aborted at the last minute Tuesday because of wind gusts. The balloon is so delicate that it can take off only if winds on the ground are 2 mph or less.

ABC reports that when he does take the leap the skydiver will break the world record for highest skydive, falling 23 miles and accelerating from zero to 690 miles per hour in 35 seconds, and become supersonic for almost a minute of the roughly 10-minute leap.

The feat Baumgartner will be attempting could ordinarily only be accomplished by a supersonic jet, or perhaps the space shuttle. Ahead of the jump, the 43-year-old said he was confident that he could do it. You can follow the event by clicking here.